import pytest
import sys
import os
from slic.core.adjustable import Adjustable
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from slic.utils.get_adj import *


class SubAdjustable(Adjustable):
    def __init__(self, *a, **kw):
        super().__init__(*a, **kw)
        self._val = 0

    def get_current_value(self):
        return self._val

    def set_target_value(self, v, *args, **kwargs):
        self._val = v
        return v

    def is_moving(self):
        return False

def test_get_adj_success():
    a1 = SubAdjustable("brightness",       units="%", limit_low=0,   limit_high=100)
    assert get_adj("brightness") is a1

def test_get_adj_not_found(capfd):
    with pytest.raises(ValueError, match='could not find Adjustable with name "nonexistent"') as exc_info:
        get_adj("nonexistent")

def test_ensure_adjs_mixed():
    a2 = SubAdjustable("contrast",         units="%", limit_low=0,   limit_high=100)
    a3 = SubAdjustable("mid_contrast",         units="%", limit_low=0,   limit_high=100)
    result = ensure_adjs([a3, "contrast"])
    assert result == (a3, a2)

def test_get_adjs_filter():
    a4 = SubAdjustable("mid_brightness",         units="%", limit_low=0,   limit_high=100)
    a5 = SubAdjustable("debug_internal",   internal=True)
    public = get_adjs()
    assert set(public) == {'brightness', 'contrast', 'mid_contrast', 'mid_brightness'}
    all_ = get_adjs(include_internal=True)
    assert set(all_) == {'brightness', 'contrast', 'mid_contrast', 'mid_brightness', 'debug_internal'}